tests/test-empty-file.t
author Pierre-Yves David <pierre-yves.david@octobus.net>
Thu, 07 Mar 2024 10:55:22 +0100
changeset 51531 f85f23f1479b
parent 16913 f2719b387380
permissions -rw-r--r--
branchcache: skip entries that are topological heads in the on disk file In the majority of cases, topological heads are also branch heads. We have efficient way to get the topological heads and efficient way to retrieve their branch information. So there is little value in putting them in the branch cache file explicitly. On the contrary, writing them explicitly tend to create very large cache file that are inefficient to read and update. So the branch cache v3 format is no longer including them. This changeset focus on the format aspect and have no focus on the performance aspect. We will cover that later.
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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  $ hg init a
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  $ cd a
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  $ touch empty1
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  $ hg add empty1
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  $ hg commit -m 'add empty1'
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  $ touch empty2
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  $ hg add empty2
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  $ hg commit -m 'add empty2'
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  $ hg up -C 0
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  0 files updated, 0 files merged, 1 files removed, 0 files unresolved
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  $ touch empty3
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  $ hg add empty3
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  $ hg commit -m 'add empty3'
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  created new head
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  $ hg heads
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  changeset:   2:a1cb177e0d44
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  tag:         tip
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  parent:      0:1e1d9c4e5b64
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  user:        test
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  date:        Thu Jan 01 00:00:00 1970 +0000
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  summary:     add empty3
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  changeset:   1:097d2b0e17f6
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  user:        test
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  date:        Thu Jan 01 00:00:00 1970 +0000
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  summary:     add empty2
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  $ hg merge 1
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  1 files updated, 0 files merged, 0 files removed, 0 files unresolved
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  (branch merge, don't forget to commit)
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Before changeset 05257fd28591, we didn't notice the
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empty file that came from rev 1:
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  $ hg status
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  M empty2
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  $ hg commit -m merge
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  $ hg manifest --debug tip
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  b80de5d138758541c5f05265ad144ab9fa86d1db 644   empty1
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  b80de5d138758541c5f05265ad144ab9fa86d1db 644   empty2
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  b80de5d138758541c5f05265ad144ab9fa86d1db 644   empty3
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  $ cd ..